7. A protein is a long strand of _______ assembled in the _______.
a.amino acids—nucleus
b.amino acids—ribosomes
c.RNA—nucleus
d.RNA—ribosomes

8. Each amino acid is coded for by _______.

a.a single DNA base
b.a sequence of three RNA molecules
c.a sequence of three DNA bases
d.a sequence of three proteins

9.What is NOT true about RNA?

a.It stands for ribonucleic acid.
b.It helps DNA make proteins.
c.It has all of the same bases as DNA.
d.There are two types: messenger RNA and transfer RNA.